Hangrails

Clarification in mining-industry terminology... do you know the correct names for these products?

I am trying to figure out the correct terms for some items related to the mining industry. Below I will try to describe them, and hopefully someone will know the correct names for each product. There are 6 products in particular I would like to know the correct name for. 1. A "TH clamp" for the "TH Profile" - these clamps hold together the pieces of every TH profile (see image by clicking on the link: http://c1.ac-images.myspacecdn.com/images02/86/l_063bbc088470478bb28d60be12425a74.jpg ). 2. "J-Bolts with nuts" that are installed about every 6 meters 3. "Pipe Hanging Systems" (inside of the tunnel you must have many pipes for air, water, etc. to travel through... these "pipe hanging systems" keep them organized in place) 4. "Dual Rails" which are available in 4 main types: 1. "straight" 2. "curved" ("left curve" or "right curve") 3. "switches" 4. "maintenance lines" 5. "Tightening units" in the hanging systems for monorails (see image by clicking on the link: http://c3.ac-images.myspacecdn.com/images02/84/l_c158640f395740fcafa3a990085fd58e.jpg ). 6. "Monorails" which are available in 3 main types: 1. "straight" 2. "curved" ("left curve" or "right curve") 3. "switches" (Also if you know links to resources about such mining industry products that would be extremely useful! THANKS!)

Public Comments

1. I can only help to solve a piece of your puzzle. Number five that you called a "tightening unit" is commonly known as a turnbuckle. As you likely know already, when the center portion of the turnbuckle is twisted around the threaded rods it will draw them both to the center of the unit thus tightening the system to which it is attached.